Network Utility Maximization Sample Clauses

Network Utility Maximization. The concept of Network Utility Maximization (NUM) in data networks was first introduced in [89] and [90]. The purpose of NUM is to optimize the flow control in the network. Consider a network (wired or wireless) which includes L links that are shared by S sources. Each source has a transmission rate xs. Also, each link has a link capacity cl. Consider a suitable utility function U (xs), where U (x) is a concave function that is non decreasing and twice continuously differentiable. Each source s ∈ S uses a set of links denoted by L(s). Let S(l) be the set of Table 2.5 : Summary of the reviewed wireless networks research involving MPTCP Reference Wireless scenario considered Main findings New congestion control algorithm (mVeno) that can [78] Any number of concurrent wireless multipath streams. Wireless testbed with LTE and Wi-Fi. Implementing 3 distinguish between wireless packet errors and congestion packet errors. Better throughput than conventional congestion control. MPTCP is clearly better than single-path TCP. However, in many scenarios the CUBIC (which is designed for [88] congestion control algorithms: XXXXX, LIA and XXXX Three MPTCP users with 3G cellular access (10 Mbps) and Wi-Fi (54 Mbps). The heterogeneity of the paths is considered. Same model as [80] but with additional 3 TCP clients using a Wi-Fi network. One user equipment (UE) connected to LTE and 5G mmWave networks. Testbed with several IoT gateways that are multihomed to LTE and Wi-Fi. Gateways implement MPTCP with OLIA congestion control. Several IoT devices connect to the gateways via Wi-Fi. An MPTCP source and destination are connected to two Wi-Fi paths. Each path consists of multi-hop routers. Two scenarios are considered: 1) each path has 2 hops, 2) one path has 2 hops and the other has 3 hops. MPTCP wireless device is multihomed to LTE and 5G mmWave networks. BALIA congestion control is used. A Multihomed wireless device, with LTE, WiMAX and Wi-Fi connections, is considered to transmit real-time video. Employing MPTCP to investigate handoff when a wireless node is moving in Wi-Fi networks with a cellular connection. single-path TCP) outperforms LIA and OLIA (which are designed for MPTCP). Hence, more attention needs to be given to congestion control in wireless networks. New MPTCP design that is adaptive to wireless networks variation in throughput and delay due to wireless channel changes, as long as the variations are slower than the convergence speed of the algorithm. Unfairnes...
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